Chi-Square Test: Goodness of Fit

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  • Опубліковано 12 жов 2020
  • This lecture explains the Chi-Square Goodness of Fit Test. A simple 3 step rule is explained for solving each problem.
    Chi-Square Test: Goodness of Fit: • Chi-Square Test: Goodn...
    Chi-Square for Attributes: • Chi-Square Test: Indep...

КОМЕНТАРІ • 52

  • @JustinMumbi-y3b
    @JustinMumbi-y3b 8 днів тому

    Your lessons are highly invaluable sir. Really appreciate

  • @drsonamsharma8041
    @drsonamsharma8041 Рік тому +2

    Very helpful in preparing my lecture. I saw a lot of vedios on this topic. But here i get the simple explanation of a confusing topic. Thank you so much sir🙏

  • @firdaousf4291
    @firdaousf4291 5 місяців тому +1

    Daamn your giving good exemples and different situations I was looking for videos for a loooong time and till I have exam tomorrow I find out your channel lol thankyou❤ ❤

  • @JoshuaAjansonSule
    @JoshuaAjansonSule 2 місяці тому

    thank you for explaining everything comprehensively

  • @udaysinghvirdi7337
    @udaysinghvirdi7337 Місяць тому

    sir in question 3 we make H(not) that dse not depend so why we conclude that it is same while we accpting the hypothesis please clear it

  • @vhukhudomathada7860
    @vhukhudomathada7860 3 роки тому +1

    Sir what to do if you not given p to find E NOR GIVEN SEVERAL columns...only given a single column..

  • @sumathin7705
    @sumathin7705 11 місяців тому +1

    Fabulous sir..thx a lot for ur clear explanation

  • @sushmaelijala1592
    @sushmaelijala1592 5 місяців тому

    Hello sir,
    How you have decided to apply binomial distribution to 4 th problem in the video..

  • @codewithab
    @codewithab Рік тому +1

    Outstanding explanation

  • @RakeshSingh-ek1hr
    @RakeshSingh-ek1hr 2 роки тому +1

    Very well explained sir
    Thank u so much

  • @RAVI-zi1wn
    @RAVI-zi1wn 2 роки тому

    Sir , the curve of chi square should only on right side, because it is square of SNV means positive?

  • @prajjwalmajumder9652
    @prajjwalmajumder9652 2 роки тому +2

    Why the chi square value in the table is being checked at 0.05 all the time?

    • @DrHarishGarg
      @DrHarishGarg  2 роки тому +2

      By default , the level of significance is 5% i.e., 0.05... But you can change it to 0.01 i.e., 1% or others as per the convenience

  • @Traveller019
    @Traveller019 3 роки тому +9

    This is really good 👍.very well explained. It's been easy to understand I m preparing for my exams and your videos has helpexplained Stay blessed 👍🙏

  • @AbdulftahAltwati
    @AbdulftahAltwati Рік тому

    Thank you so much

  • @shayanansari9450
    @shayanansari9450 2 роки тому +1

    Very helpful thankuh sir

  • @shrawankumarpatel2148
    @shrawankumarpatel2148 11 місяців тому

    Thank you so much sir

  • @_sf_editz1870
    @_sf_editz1870 Рік тому

    sir , how to know whether the question is chisquare test or not ??

  • @harshvardhanpareek4103
    @harshvardhanpareek4103 2 роки тому +1

    Amazing video sir 😍😍🤩🤩

    • @DrHarishGarg
      @DrHarishGarg  2 роки тому +1

      Thanks a ton..
      Lecture on the RUN Test is uploaded ... Kindly watch

  • @rohitchandel.01
    @rohitchandel.01 Рік тому

    Sir why you use binomial equation in 4th question ??

  • @DineshKumar-bu9hu
    @DineshKumar-bu9hu Рік тому

    thankyou sir for the videos. helped a lot for the exams

    • @DrHarishGarg
      @DrHarishGarg  Рік тому

      It's my pleasure.. I hope you can share with others too so that they also learn alot from my this and other videos..

  • @tejaspatil476
    @tejaspatil476 3 роки тому +2

    Nice video sir

    • @DrHarishGarg
      @DrHarishGarg  3 роки тому +1

      Many thanks ... Keep watching second video on Chi square test - Independence of attribute.

  • @optimization9040
    @optimization9040 3 роки тому +1

    What is the difference between the chi-square test and T test or they are the same? Sir

    • @DrHarishGarg
      @DrHarishGarg  3 роки тому +2

      Chi-square test is based on frequency and it is distribution free (non-parametric test, means no need of population follow to be normal ), while t-test is used to check the average (mean) only for small samples (whose size is

    • @optimization9040
      @optimization9040 3 роки тому

      @@DrHarishGarg Many thanks for your informative answer

  • @bestojohnjoseph6962
    @bestojohnjoseph6962 3 роки тому +1

    Sir can u please explain me more how the degrees of freedom in problem no. 5 is calculated... I am still confused😑... The rest all were really fantastic ❤️

  • @watchanimelol
    @watchanimelol Рік тому

    Sir what does it mean when in the question it is asked to "test the hypothesis ___" is this hypothesis H⁰ or H¹?

    • @DrHarishGarg
      @DrHarishGarg  Рік тому

      No dear... Actually, sometime it will be H0 and sometime it will be H1.... To know what is H0 and H1 easily... See my lecture... Its easy to learn..
      ua-cam.com/video/U1e8CqkSzLI/v-deo.html

    • @watchanimelol
      @watchanimelol Рік тому

      @@DrHarishGarg thank you sir 🙏

    • @DrHarishGarg
      @DrHarishGarg  Рік тому

      My pleasure always .... Keep watching and share with other students too.

  • @shivable
    @shivable 2 роки тому

    Nice explanation

  • @solvinglife6658
    @solvinglife6658 Рік тому +1

    Sir why we combine values less than 5?

    • @RahulPrajapati-qk1cr
      @RahulPrajapati-qk1cr 8 місяців тому +1

      It is one of the conditions of validity of Chi-Square test

  • @shrawankumarpatel2148
    @shrawankumarpatel2148 10 місяців тому

    🙏🙏🙏🙏🙏

  • @abdulmatinhublikar3050
    @abdulmatinhublikar3050 3 роки тому +1

    Sir please explain Matlab code for Firefly algorithm and social algorithm

    • @DrHarishGarg
      @DrHarishGarg  3 роки тому

      Sure... Next video will be on these MATLAb Code

  • @UmerFarooq-zm6po
    @UmerFarooq-zm6po Рік тому

    22:58,
    Why 0.05 is chosen?

    • @DrHarishGarg
      @DrHarishGarg  Рік тому +1

      By default, it is 5% level of significance.

  • @arjyarashminahak8931
    @arjyarashminahak8931 Рік тому

    17:34

  • @watchanimelol
    @watchanimelol Рік тому

    Sir please cover contingency table 🙏

    • @DrHarishGarg
      @DrHarishGarg  Рік тому

      Already uploaded and available at my channel..... Check the playlist... Chi square test: Independence of attributes

  • @pradipkhatri8481
    @pradipkhatri8481 3 роки тому

    Dear sir can you please explain Quantum Particle swamp optimization(QPSO).

    • @DrHarishGarg
      @DrHarishGarg  3 роки тому +1

      Sure .... I will considered in the future task

  • @kousalyasivakumaran4064
    @kousalyasivakumaran4064 3 роки тому +2

    Sir what if the observed data is given in percentage without giving the total value of N
    Example:
    Red- 38%
    Blue- 42%
    Green- 20%
    What would be the O and E??
    Please help sir

    • @DrHarishGarg
      @DrHarishGarg  3 роки тому +4

      Here O is 38%, 42%, 20% and N is sum of these, i.e., N = 100%
      You can also take O as 38, 42, 20 as % is common to all of them.
      Also you can take O as 0.38, 0.42, 0.20 etc. And N is 0.38+0.42+0.20=1
      Once you get O , now calculate E as per the statement conditions.

    • @kousalyasivakumaran4064
      @kousalyasivakumaran4064 3 роки тому +1

      @@DrHarishGarg thank you so much sir